Mahapadanasutta 3.4.9

3.4.9

Ahañceva kho pana dhammaṃ deseyyaṃ, pare ca me na ājāneyyuṃ; so mamassa kilamatho, sā mamassa vihesā”ti.

“If I were to teach this principle, others might not understand me, which would be wearying and troublesome for me.”